20102211112099 has 4 divisors (see below), whose sum is σ = 20120535827064. Its totient is φ = 20083886397136.

The previous prime is 20102211112003. The next prime is 20102211112133. The reversal of 20102211112099 is 99021111220102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20102211112099 - 2¹⁵ = 20102211079331 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20102211112099.

It is not an unprimeable number, because it can be changed into a prime (20102211122099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9162355837 + ... + 9162358030.

It is an arithmetic number, because the mean of its divisors is an integer number (5030133956766).

Almost surely, 2^{20102211112099} is an apocalyptic number.

20102211112099 is a deficient number, since it is larger than the sum of its proper divisors (18324714965).

20102211112099 is a wasteful number, since it uses less digits than its factorization.

20102211112099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18324714964.

The product of its (nonzero) digits is 1296, while the sum is 31.

The spelling of 20102211112099 in words is "twenty trillion, one hundred two billion, two hundred eleven million, one hundred twelve thousand, ninety-nine".